JavaScript Library & Framework
16,473 of the 965,200 top sites in our Tranco top-1M census run Modernizr (1.7%). A JavaScript library that detects which HTML5/CSS3 features a browser supports, enabling progressive enhancement. Detection is homepage-level HTML/header fingerprinting, so a site can run Modernizr on other pages without it showing here.
| # | Domain | Global traffic rank | Contacts |
|---|---|---|---|
| 1 | mit.edu | #225 (Tranco) | Find emails |
| 2 | npr.org | #466 (Tranco) | Find emails |
| 3 | uk.com | #532 (Tranco) | Find emails |
| 4 | cornell.edu |
| Site | Tranco rank | Also detected | Contacts |
|---|---|---|---|
| biggreensmile.nl | #570,377 | ASP.NET, Cloudflare, Cloudflare edge/CDN + 7 more | Find emails |
| wellbe-group.com | #570,393 | Cloudflare, Cloudflare edge/CDN, Google Fonts + 7 more | Find emails |
| cadwalader.com | #570,433 | AOS, ASP.NET, Amazon Route 53 + 13 more | Find emails |
| #563 (Tranco) |
| Find emails |
| 5 | python.org | #747 (Tranco) | Find emails |
| stadsmissionen.se | #570,547 | Drupal, Google Tag Manager, Let's Encrypt + 2 more | Find emails |
| zakon-pravo-russia.ru | #570,586 | Bootstrap, Font Awesome, Let's Encrypt + 6 more | Find emails |
| usaveinclinics.com | #570,597 | Cloudflare, Cloudflare edge/CDN, CookieYes + 9 more | Find emails |
| coastline.edu | #570,616 | Azure DNS, Google Analytics, Google Tag Manager + 1 more | Find emails |
| polifemo.com | #570,630 | Django, Fancybox, Google Fonts + 2 more | Find emails |
| animax-asia.com | #570,651 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 5 more | Find emails |
| rugby.or.jp | #570,661 | Font Awesome, Google Analytics, Google Tag Manager + 5 more | Find emails |
| federalassociados.com.br | #570,703 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 9 more | Find emails |
| lablanche.eu | #570,753 | AOS, Bootstrap, Let's Encrypt + 3 more | Find emails |
| bestsport.com.ua | #570,763 | Cloudflare, Cloudflare edge/CDN, Font Awesome + 4 more | Find emails |
| beaconcameraclub.co.uk | #570,828 | Bootstrap, Fancybox, Font Awesome + 6 more | Find emails |
| resourcepos.com | #570,837 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 7 more | Find emails |
| grshosting.com | #570,864 | Bootstrap, Let's Encrypt, Nginx + 3 more | Find emails |
| vobox.ru | #570,904 | Nginx, jQuery, jQuery UI | Find emails |
| vexanium.com | #570,971 | AOS, Laravel, Sectigo + 4 more | Find emails |
| adoptapet.com.au | #571,078 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 9 more | Find emails |
| ticketleader.ca | #571,095 | Azure DNS, Fastly, Font Awesome + 6 more | Find emails |
| ovohydro.com | #571,149 | Fastly, Font Awesome, Google Tag Manager + 3 more | Find emails |
| msig-asia.com | #571,197 | AOS, CSC (Digital Brand Services), Cloudflare edge/CDN + 11 more | Find emails |
| manebi.com | #571,231 | BrightEdge, Cloudflare edge/CDN, ConsentMo + 12 more | Find emails |
| pcgamesinsider.biz | #571,241 | Cloudflare, Cloudflare edge/CDN, Google Analytics + 6 more | Find emails |
| cengage.ca | #571,334 | Amazon (ACM), Amazon CloudFront, Cloudflare edge/CDN + 8 more | Find emails |
Showing the first 10,000matches — add a filter to narrow.
From the Crawlora Website Tech Stack Dataset, a homepage-level fingerprint of a 965,200-domain Tranco top-1M census (run top1m-2026-08-20-full), snapshot August 21, 2026. Directional, not exhaustive — fully custom or bundled stacks under-detect. Methodology →